WO1994008908A1 - Rotary glass-molding press with cushioned, trunnion mounted hydraulic drive - Google Patents
Rotary glass-molding press with cushioned, trunnion mounted hydraulic drive Download PDFInfo
- Publication number
- WO1994008908A1 WO1994008908A1 PCT/US1993/009800 US9309800W WO9408908A1 WO 1994008908 A1 WO1994008908 A1 WO 1994008908A1 US 9309800 W US9309800 W US 9309800W WO 9408908 A1 WO9408908 A1 WO 9408908A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotator
- rod
- base
- hydraulic
- cylinder
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/16—Gearing or controlling mechanisms specially adapted for glass presses
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/02—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing in machines with rotary tables
Definitions
- This invention relates to industrial glass molding, and mo particularly, to the drive mechanisms of rotary glass-molding presses.
- An object of the invention is a rotary glass making press having substantially wear-free drive.
- Another object of the invention is a rotary glass making press havin a drive of a minimal number of components and actions.
- Another object of the invention is a rotary glass making press havin a drive which minimizes shock to glass articles in formation as the pre operates.
- the invented automatic, rotar glass making press comprises a base, a rotary table mounted for rotation o the base, and glass-forming mechanisms on the table and base, f formation of glass articles at work stations around the press.
- the pre further comprises a rotator mounted for rotation to the base, a drive pi means for driving the table mounted to the rotator, and a drive pi advancing and retracting means.
- the last-stated means operates to advanc and retract the drive pin means into engagement and out of engageme with the table.
- the press still further comprises a rotator drive means for driving th rotator in reciprocating rotation.
- the rotator drive means including a fir rod means for extending and retracting a first rod mounted between the bas and the rotator. The first rod advancing the rotator during the extending the first rod.
- the rotator drive means also includes a second rod means fo extending a second rod mounted between the base and the rotator. Th second rod retracts the rotator during extending of the second rod.
- Th first and second rod means are mounted to the base and rotator for arcuat movements of the first and second rods as the rotator moves i reciprocating rotation about the base.
- the press is completed by contr means for controlling the drive pin advancing and retracting means and th rotator drive means.
- th first rod means advances the rotator while the drive pin means is i engagement with the table, thereby advancing the table, and the second ro means retracts the rotator while the drive pin means is out of engageme with the table, whereby the table is rotated forward in increments. Attention is now directed to the preferred embodiment.
- Figure 1 is a perspective view of the preferred, automatic rotar glass-making press of the invention.
- Figure 2 is a perspective view of the preferred press, with a portio broken away to reveal the drive of the press.
- Figure 3 is a side elevation view of the preferred press.
- Figure 4 is an exploded perspective view of the drive of the pres
- Figure 5 is a top plan view of the cushion cylinder of the preferre embodiment, with half the view cut away along the cylinder centerline t reveal internal detail.
- Figure 6 is a view of an annular internal sleeve of the cushio cylinder having a predetermined hole pattern; the sleeve is. shown as if were cut and unrolled to be flat.
- Figure 7 is a deceleration curve which corresponds to the rate deceleration for the cushion cylinder of the preferred embodiment.
- the preferred embodiment of th invented press includes a base 10.
- a circular rotary table 12 is mounte atop the base 10.
- a central column 14 extends upward from the table 12 defining the central, vertical axis about which the table 12 rotates.
- Th central column 14 and two spaced side columns such as column 16 suppor a yoke 18.
- a press head 20 is extendable downward from the yoke 18, t the table 12.
- the press head 20 forms glass articles on the table 12
- Additional glass-forming mechanisms and components around the table 1 include air former assemblies such as assembly 22, basket assemblies suc as assembly 24, a shell transfer assembly 26, an article release assembl 28, and a take-out assembly 30 with its control panel 32.
- the preferred press further includes trunnion mounted hydraulic drive, generally designated 34.
- the drive 34 includes two oppose hydraulic cylinders 36, 38.
- the cylinder seem aligned for linear motion only, but as will be described, the cylinder pivot relative to each other and are perfectly aligned with each other onl in the position shown in Figures 3 and 4.
- the drive 34 further includes a rotator arm 40, a drive pin cylinde assembly 42, a drive pin 44, rotator arm pins 46, trunnions 48, 49 associated brackets and plates such as 50, 52, and safety cages 54.
- the rotator arm 40 includes a collar portion 56, which is mounte under the table 12 about the central column 14.
- the rotator arm 40 extend from the collar 56 outward of the central column to a distal, pin connecto portion 58.
- the drive pin cylinder assembly 42 is mounted on the oute end of the arm 40, furthest from the central column 14, and immediatel inward of the mounted drive pin cylinder assembly 42, the rotator arm pin 46 join the piston rods 60, 62 of the cylinders 36, 38 to the rotator arm 40
- the trunnions 48, 49 attac the cylinders 36, 38, respectively, to the base 10 for pivoting, also referre to as rotation.
- the mounting an orientation of the cylinders 36, 38 is such that when one piston rod suc as rod 60 is extended from its cylinder such as 36, the opposite rod such a
- each piston rod 60, 62 retracts, the cylinder 36 rotates initially clockwise, and the oppose cylinder 38 also rotates clockwise, both directions of rotation bein referenced from above. Opposite piston rod extension causes opposit rotation. Each piston rod 60, 62 extends into its respective hydraulic cylinde
- the cylinders 36, 38 are single actio cylinders, with external porting only at the outer ends of the cylinders outward of the rods and pistons.
- the cylinders are driven in opposition t each other, with each one driven intermittently, to reciprocate the rotato arm 40. More specifically, the hydraulic control of the cylinders force hydraulic fluid into the cylinder 36, driving the rod 60 to extend. Whil such extension is occurring, the cylinder 38 is idled and the rod 62 i allowed to retract. The opposite also occurs: when cylinder 38 is driven drive rod 62 to extend, the cylinder 36 is idled and rod 60 is allowed retract.
- the action as described causes a rocking, or reciprocating rotatio of the rotator arm 40 and thereby of the drive pin cylinder assembly 42 a the drive pin 44.
- the action of the rotator arm 40 and pin 44 is transferr to the table 12, such that the table indexes forward, without rocking bac
- the hydraulic control of the cylinders 36, 38 is co-ordinated with the acti of the drive pin 44.
- the drive pin 44 is extendable and retractable parall to the axis of the table 12 and central column 14 under the action of t drive pin cylinder assembly 42.
- the drive pin 44 is selectively extend and retracted such that when the cylinder 36 is active to rotate the rotat arm 40, the drive pin 44 is extended upward to engage and drive the tab 12.
- the internal structure of the cylinder 38 unique from the internal structure of the cylinder 36.
- the cylinder 38 includes its piston rod 62, piston 64 and the expected, external housing 66.
- the cylind 38 includes an inner sleeve 68, within the housing 66.
- the sleeve 68 spaced internally from the housing 66, to create an annular fluid reservo area 70 between the sleeve 68 and housing 66.
- the piston 64 moves within the sleeve 68.
- the sleeve 68 is itse annular, as are the piston 64 and piston rod 62.
- the piston 64 and pist rod 62 have substantially the same outer diameter.
- the sleeve 68 is clearance distance such as one-sixteenth of an inch from the piston 64 a piston rod 62.
- the cushion cylinder piston inner sleeve defines a plurality of ports such as ports 72 between the annular flu reservoir area 70 and the interior of the inner sleeve 68.
- the spacin number and size of the inner sleeve ports are selected to allow the cushi cylinder 38 to decelerate the drive rod 60 as it reaches the outward extre of its travel.
- Figure 7 is a deceleration curve for the cushion cylinder 3 The curve plots the total area defined by the inner sleeve ports such as at one inch increments along the inner sleeve.
- the cushion cylinder 38 operates as follows. At the beginning of t stroke of cushion cylinder piston 64, the cylinder 38 is filled with hydraul fluid and the cushion cylinder piston 64 rests at the mouth of the inn sleeve 68. When the rotary table 12 is to be indexed, the drive rod extends and forces the cushion rod 62 and piston 64 to begin their stro through the inner sleeve 68. As the piston 64 continues its stroke, t piston 64 is slowed by hydraulic fluid being forced to exit the interior of t inner sleeve 68 through the ports of the inner sleeve. As the piston nears the end of its stroke, the cushion rod 62 and piston 64 cover an block off an increasing number of the inner sleeve ports.
- the size of t remaining ports are progressively smaller.
- the decreased ability of t hydraulic fluid to exit through the inner sleeve smaller ports cause increase in the back-pressure being exerted on the piston 64, cushioning t indexing motion of the rotator arm 40 and enabling the table 12 to stopped without shock.
- the combination of the hydraulic oil, pisto 64, piston rod 62, inner sleeve 68, annular fluid reservoir 70 and ports suc as 72 forms a rotator cushion for cushioning movement of the rotator ar 40 while the drive rod 60 advances the rotator arm 40.
- the inner sleeve ports can be fitted wit threaded inserts to allow the ports to be plugged. Plugging ports woul allow the area defined by the ports at each one inch increment along th inner sleeve 68 to be adjusted to correspond to the area requirements deceleration curves other than the curve of Figure 7. Because modificatio are possible, the following claims conclude this Specification, to particularl point out and distinctly claim the subject matter regarded as invention.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Glass Compositions (AREA)
- Press Drives And Press Lines (AREA)
- Hydraulic Motors (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Actuator (AREA)
- Forging (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69303910T DE69303910T2 (en) | 1992-10-13 | 1993-10-13 | ROTATING GLASS PRESS WITH HYDRAULIC GEARBOX AND PIN BEARING |
EP93924924A EP0665820B1 (en) | 1992-10-13 | 1993-10-13 | Rotary glass-molding press with cushioned, trunnion mounted hydraulic drive |
JP6510248A JPH08505351A (en) | 1992-10-13 | 1993-10-13 | Rotary glass forming press with shock absorber hydraulic drive fitted with trunnion |
KR1019950701417A KR0181734B1 (en) | 1992-10-13 | 1993-10-13 | Rotary glass-molding press with cushioned trunnion mounted hydraulic drive |
AU54426/94A AU5442694A (en) | 1992-10-13 | 1993-10-13 | Rotary glass-molding press with cushioned, trunnion mounted hydraulic drive |
BR9307244A BR9307244A (en) | 1992-10-13 | 1993-10-13 | Automatic rotary press for glass making |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/960,136 US5284502A (en) | 1992-10-13 | 1992-10-13 | Rotary glass-molding press with cushioned, trunnion mounted hydraulic drive |
US960,136 | 1992-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994008908A1 true WO1994008908A1 (en) | 1994-04-28 |
Family
ID=25502831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1993/009800 WO1994008908A1 (en) | 1992-10-13 | 1993-10-13 | Rotary glass-molding press with cushioned, trunnion mounted hydraulic drive |
Country Status (10)
Country | Link |
---|---|
US (1) | US5284502A (en) |
EP (1) | EP0665820B1 (en) |
JP (1) | JPH08505351A (en) |
KR (1) | KR0181734B1 (en) |
AT (1) | ATE140912T1 (en) |
AU (1) | AU5442694A (en) |
BR (1) | BR9307244A (en) |
DE (1) | DE69303910T2 (en) |
DK (1) | DK0665820T3 (en) |
WO (1) | WO1994008908A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2244809A (en) * | 1937-06-25 | 1941-06-10 | G M S Corp | Tumbler press |
US3388985A (en) * | 1965-01-28 | 1968-06-18 | Anchor Hocking Glass Corp | Drive for glass-forming machines |
FR2552014A1 (en) * | 1983-09-19 | 1985-03-22 | Lynch Corp | INDEXABLE PRESS FOR GLASS MOLDING |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4704152A (en) * | 1986-07-28 | 1987-11-03 | Owens-Illinois, Inc. | Method of and apparatus for press forming cathode ray tube faceplate panels |
-
1992
- 1992-10-13 US US07/960,136 patent/US5284502A/en not_active Expired - Fee Related
-
1993
- 1993-10-13 WO PCT/US1993/009800 patent/WO1994008908A1/en active IP Right Grant
- 1993-10-13 AT AT93924924T patent/ATE140912T1/en not_active IP Right Cessation
- 1993-10-13 AU AU54426/94A patent/AU5442694A/en not_active Abandoned
- 1993-10-13 DE DE69303910T patent/DE69303910T2/en not_active Expired - Fee Related
- 1993-10-13 BR BR9307244A patent/BR9307244A/en not_active Application Discontinuation
- 1993-10-13 DK DK93924924.9T patent/DK0665820T3/en active
- 1993-10-13 EP EP93924924A patent/EP0665820B1/en not_active Expired - Lifetime
- 1993-10-13 JP JP6510248A patent/JPH08505351A/en active Pending
- 1993-10-13 KR KR1019950701417A patent/KR0181734B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2244809A (en) * | 1937-06-25 | 1941-06-10 | G M S Corp | Tumbler press |
US3388985A (en) * | 1965-01-28 | 1968-06-18 | Anchor Hocking Glass Corp | Drive for glass-forming machines |
FR2552014A1 (en) * | 1983-09-19 | 1985-03-22 | Lynch Corp | INDEXABLE PRESS FOR GLASS MOLDING |
Also Published As
Publication number | Publication date |
---|---|
DE69303910T2 (en) | 1997-01-02 |
DK0665820T3 (en) | 1996-11-04 |
EP0665820A1 (en) | 1995-08-09 |
EP0665820B1 (en) | 1996-07-31 |
AU5442694A (en) | 1994-05-09 |
ATE140912T1 (en) | 1996-08-15 |
DE69303910D1 (en) | 1996-09-05 |
US5284502A (en) | 1994-02-08 |
KR950704204A (en) | 1995-11-17 |
JPH08505351A (en) | 1996-06-11 |
BR9307244A (en) | 1999-08-24 |
KR0181734B1 (en) | 1999-04-15 |
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